Abstract

Phytotherapeutic agents - bioactive compounds derived from plants - have long been used in traditional and modern 
medicine due to their antioxidant, anti-inflammatory, and therapeutic properties. However, despite their benefits, 
there is growing concern regarding their safety profiles, especially at higher doses or prolonged use. Toxicokinetics - the study of how a substance enters, moves through, and leaves the body - is crucial for understanding both the 
therapeutic potential and risk factors associated with these natural compounds. This review examines the 
toxicokinetic processes of phytotherapeutic agents, including absorption, distribution, metabolism, and excretion 
(ADME), and evaluates how these processes influence safety and efficacy. The article also explores factors affecting 
toxicokinetics such as chemical structure, dose, formulation, age, and genetic differences. Common challenges - such 
as herb-drug interactions, metabolic transformation to toxic metabolites, and accumulation in tissues - are discussed. 
Strategies to improve safety without compromising antioxidant effectiveness include optimizing formulation, 
monitoring biomarkers, and applying advanced modeling techniques. By integrating toxicokinetic research with 
clinical practice, healthcare professionals and researchers can better balance the antioxidant benefits of plant 
compounds with their potential risks, promoting safer and more effective use of phytotherapeutic agents.